Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 62 for “"Little Ice Age"”.
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Impacts of the Little Ice Age on the vegetation of southern Nevada
… coincident with the climatic shifts during the Little Ice Age, 1250 A.D. to 1800 A.D., and was probably caused by increased precipitation.
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Little Ice Age climate in the Western Tropical Atlantic inferred from coral geochemical proxies
… Finally, I apply Sr-U to a coral from the Little Ice Age (LIA) to address uncertainties in the magnitude of western tropical Atlantic cooling during a 95-year period spanning 1465-1560. Results suggest the region was 1.1 ̊C±0.6°C cooler than the 1958-1988 mean, but within error of early …
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Little Ice Age climate in the western tropical Atlantic inferred from coral geochemical proxies
… Finally, I apply Sr-U to a coral from the Little Ice Age (LIA) to address uncertainties in the magnitude of western tropical Atlantic cooling during a 95-year period spanning 1465-1560. Results suggest the region was 1.1° C±0.6°C cooler than the 1958-1988 mean, but within error of early …
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Estimation of changes in the volume of ice making up Gornergletscher since the little ice age maximum
… thesis aims to estimate changes in the mass of icemaking up Gornergletscher since the Little Ice Age maximum extent (LIAM) in 1860in the context of climate change. Gornergletscher, the second largest glacier in theSwiss Alps, is one of few glaciers for which bedrock topography map is …
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Late Holocene Climatic Change: The little ice age and El Nino from planktonic foraminifera in sediments off walvis bay, South West Africa
… South West Africa, seems to correlate with the Little Ice Age that occurred during the late Holocene. Although similar research, using species and oxygen isotope variations has been completed in similar sediment off northern Venezuela and in the Santa Barbara Basin (Kipp and Towner 1975, Dunbar …
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Gulf stream temperature, salinity and transport during the last millennium
… data imply that Gulf Stream transport during the Little Ice Age (LIA: 1200-1850 A.D.) was 2-3 Sv lower than today. The timing of reduced flow is consistent with cold conditions in Northern Hemisphere paleoclimate archives, implicating Gulf Stream heat transport in centennial-scale climate …
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Muddy memories : environmental change at Hluhluwe Imfolozi Game Reserve, KwaZulu-Natal, South Africa - evidence from diatoms
… From c. A.D. 1770 (the last few decades of the Little Ice Age) to the c. A.D. 1840 the climate was cool and wet, but nonetheless gradually warmed up and became drier. From c. A.D. 1840 through to c. A.D. 1920 a there was a gradual increase in temperature and corresponding decrease in rainfall. …
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Gulf Stream temperature, salinity and transport during the last millennium
… data imply that Gulf Stream transport during the Little Ice Age (LIA: 1200-1850 A.D.) was 2-3 Sv lower than today. The timing of reduced flow is consistent with cold conditions in Northern Hemisphere paleoclimate archives, implicating Gulf Stream heat transport in centennial-scale climate …
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Simulating Anthropogenic and Climatic Influences On Fluvial Sediment Load In the Southeastern U.S. and Central Europe
… and dam construction, respectively. On average, major southeastern rivers currently transport even less sediment (16%) than prior to European settlement. Similarly, modeled results suggest that reservoir impoundment in the Danube watershed has reduced sediment flux to the Black Sea by …
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Glacial isostatic adjustment and relative sea level change over the last earthquake cycle in upper Cook Inlet, Alaska, USA
… this thesis considers the interactions of ice mass fluctuations and tectonic deformation over the last great earthquake cycle in south central Alaska. Reconstructions of relative sea level change over the last 900 years, based upon extensive lithological, biostratigraphical and …
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Analysis of laminated sediments from Lake DV09, northern Devon Island, Nunavut, Canada
… transport energy. The coldest period of the Little Ice Age appears to be during the AD 1600s. Varve widths over the past century indicate climate warming in the region.
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Plant Successional Patterns at Sperry Glacier Foreland, Glacier National Park, MT, USA
… rapid glacial retreat in many glaciers since the Little Ice Age. This retreat provides a unique opportunity to study succession across the chronosequences of glacier forelands. Patterns of plant colonization and succession on terrain exposed by retreating glaciers give insight into factors …
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Climate Change and the Great Plague Pandemics of History: Causal Link between Global Climate Fluctuations and Yersinia Pestis Contagion?
… 535-536 A.D., the Medieval Warm Period, and the Little Ice Age are correlated with literary evidence recording the transmission and dormancy sequence of the plague. Although distinct differences exist between the origins of climate change in the periods preceding each plague, the effects of such …
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Plant xylem anatomy, dendrochronology and stable carbon isotopes as tools in rainfall reconstruction in Southern Africa
… present with a slightly wetter period during the Little Ice Age (1300 to 1800 A.D.). The results also suggest that present conditions are much drier than at any other time within the last 2000 years. The only limitations on this method are the resolution of the radiocarbon dates, a suitable …
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Modern Foraminiferal Assemblages of the Denmark Strait
… and less meltwater influx (most likely the Little Ice age), and finally a shift to our present day environment in which the climate in the region is warming due to anthropogenic impacts. Although more work needs to be done, it is clear that benthic foraminifera in the region respond to …
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Science, politics, and soul-making: the Romantic encounter with climate change
… of human civilization upon it. The end of the Little Ice Age, the acceleration of anthropogenic global warming resulting from the Industrial Revolution, and a series of volcanic eruptions causing major shocks to the global climate system all provided reference points for Romantic writers to …
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4000 years of environmental and climate change at Eilandvlei : a palynological investigation into the late Holocene palaeoenvironment of the Wilderness Embayment
… Neoglacial, the Medieval Climate Anomaly and the Little Ice Age. The record also encompasses the arrival of European colonists in the region ca. 1800 AD, marked by the appearance of Pinus, with subsequent notable fluctuations in other taxa, e.g. Podocarpus and Stoebe-type, possibly the expression …
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The Combined Role of ENSO-driven Sea Surface Temperature Variation and Arctic Sea Ice Extent in Defining Climate Conditions in the Southwestern United States
… indicates that future reductions in Arctic sea ice cover (SIC) could alter storm tracks and precipitation patterns in western North America and negatively impact water resources in the American southwest. Other research suggests that multiple periods of increased precipitation and/or cooler …
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Evidence of Multidecadal Recruitment in the Ocean Quahog, <i>Arctica islandica</i> in the Western Atlantic Ocean
… regarding recruitment, making the sustainable management of this valuable fishery a challenge. The objective of this research was to describe the age structure and growth rates for four populations of ocean quahogs from the mid-Atlantic stock to evaluate long-term recruitment trends. Clams were …
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Two Post-Glacial Sagebrush Steppe Fire Records at the Wildland-Urban Interface, Eastern Cascades, Washington
… past fire regimes in an understudied ecosystem, sagebrush steppe. In this thesis, two ca. 15,000-year-old fire histories were developed from study sites in Okanogan County, Washington. Lake sediment cores were analyzed using macroscopic charcoal analysis and CharAnalysis software. Relationships …
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